CanonifyURLs still supported?

It’s clear from

that canonifyURLs would be removed.
Nonetheless, @bep wrote later in

that

CanonifyURLs will not be removed before I implement an alternative.

That confuses me, and I’d love to know whether it’s still there.

It is. It has its problems and isn’t perfect, but will not be removed until we have a good replacement.

Thanks for reply.